Re: [PATCH] HID: alps: fix stick device not working after resume

From: Jiri Kosina
Date: Wed Sep 21 2016 - 08:00:25 EST

On Mon, 19 Sep 2016, Kai Heng Feng wrote:

> >> The stick device does not work after resume, add U1_SP_ABS_MODE flag can
> >> make the device work after resume.
> >
> > Do you happen to have any more details on why it doesn't work without
> > U1_SP_ABS_MODE? Or was this a pure guesswork?
> It' pure guesswork, based on how the existing code uses U1_TP_ABS_MODE flag
> on both initialization and resume.
> I also tested the the patch on an ALPS touchpad without stick device,
> did not notice
> any side effect on suspend/resume, so I made the U1_SP_ABS_MODE flag mandatory.

I'll fold this information into the patch changelog before comitting; if
you disagree, please let me know.

Jiri Kosina